While functional tests are great, language negotiation is very complex, and a poorly understood bug introduced in one layer and fixed in another could easily slip by a functional test. And yet, there are huge gaps in the Unit and Kernel test coverage of language module. In particular:
Kernel\ConfigurableLanguageManagerTest class only covers getLanguageSwitchLinks and even that with an extremely short test method without any asserts.LanguageNegotiator class is completely untested.LanguageRequestSubscriber.LanguageNegotiationUrl has a unit test, the others don’t.If there’s interest in fixing this, this issue probably needs to become a meta, with a large number of child issues.
Active
11.0 🔥
language system
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It's likely this issue predates Contrib.social: some issue and comment data are missing.
Came up as a daily BSI target
#1 ConfigurableLanguageManagerTest does still seem to be scare
#2 there is LanguageNegotiatorPluginTest now wonder if that covers it
#3 Quick search didn't find any test
#4 Which are missing?
Definitely still seems to be relevant